Model and Full Scale Predictions of a Carrier Flow Field

Abstract

Viscous flow calculations using the Reynolds Averaged Navier-Stokes (RANS) equations are performed for a carrier configuration at both model and full scale Reynolds numbers. These calculations are for a bare hull with skeg, bilge keels and outboard propeller shaft. The calculations indicate there are extensive differences between the model and full scale wakes entering the propeller disks. Without the propeller shaft the dominant effect is the bilge vortex particularly at model scale. At full scale the flow entering the propellers is very nearly inviscid without the shafts present. The shaft wake is shown to have a significant impact on the flow entering the propeller and shaft rotation further impacts this inflow.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2002
Accession Number
ADA405376

Entities

People

  • Henry Hausling
  • Joseph Gorski
  • Roderick Coleman

Organizations

  • Naval Surface Warfare Center Carderock Division

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bilge Keels
  • Bilges
  • Boundary Layer
  • Computational Fluid Dynamics
  • Equations
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Froude Number
  • Hulls (Marine)
  • Inviscid Flow
  • Parallel Processing
  • Propeller Shafts
  • Reynolds Number
  • Surface Properties
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Fluid Mechanics and Fluid Dynamics.
  • Marine Hydrodynamics